Finite Group Databasebeta
Cayley diagram

C22×#97 #2870

order128
nilpotency class2
isoclinismisoclinic class of D4
automorphismAut(G) order 196608
homologyAbelianization (H1) = C22×C42 · Schur multiplier (H2) = C26

Aliases

direct productC22×#97

Subgroups

subgroupG/H
centerC23×C4C22
commutatorC2C22×C42
Frattini, cosocleC2×C4C24
socle, prime radicalC24C2×C4
LCSG ▷ C2 ▷ C1
UCSC1 ◁ C23×C4 ◁ G
LECSG ▷ C2×C4 ▷ C2 ▷ C1

340 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 16
transitive degreeμt(G) = 128

A minimal faithful permutation representation — 4 generators on 16 points:

(1,2);(3,4);(9,10,11,14,12,13,15,16);(5,6,7,8)(10,13)(14,16)

Conjugacy classes & character table

80 conjugacy classes — view the full character table.

Relationships

Frattini subgroup of#93302, #93303, #93374, …
Fitting subgroup ofA4×#97, #11711154, #11711155, …
maximal subgroup ofC2×#1275, #7861, C2×#1281, …
maximal normal subgroup ofC2×#1275, #7861, C2×#1281, …
maximal quotient ofC22×#322, C2×#1451, C2×#1452, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(128, 1602);